assured, bigheaded, complacent, conceited, consequential, egoistic(also egoistical), egotistic(or egotistical), important, overweening, pompous, prideful, proud, self-conceited, self-important, self-opinionated, self-satisfied, smug, stuck-up, swellheaded, vain, vainglorious

blusterous, blustery, boastful, bombastic, braggart, bragging, braggy, cocky, swaggeringarrogant, assumptive, bumptious, cavalier, chesty, disdainful, fastuous, haughty, high-and-mighty, high-hat, huffy, lofty, lordly, masterful, peremptory, pontifical, self-asserting, self-assertive, snobbish, snobby, snooty, supercilious, superior, toplofty(also toploftical), uppish, uppitydomineering, high-handed, imperioushighfalutin(also hifalutin), holier-than-thou, pretentiousoverconfident, presuming, presumptuousconfident, self-assured, self-confidentself-adulatory, self-congratulatory, self-contented, self-gratulatoryself-applauding, self-dramatizing, self-glorifying, self-promotingself-affected, self-centered, self-engrossed, selfishcondescending, patronizing